.bounce {
    animation-duration: 1s;
    animation-name: bounce;
}

@keyframes bounce {
    from, 20%, 53%, 80%, to {
        animation-timing-function: cubic-bezier(0.215, 0.610, 0.355, 1.000);
        transform: translate3d(0,0,0);
    }
    40%, 43% {
        animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
        transform: translate3d(0, -30px, 0);
    }
    70% {
        animation-timing-function: cubic-bezier(0.755, 0.050, 0.855, 0.060);
        transform: translate3d(0, -15px, 0);
    }
    90% {
        -webkit-transform: translate3d(0,-4px,0);
        transform: translate3d(0,-4px,0);
    }
}